package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

/**
 * 删除用户操作 根据用户输入的用户名删除用户
 * 使用预编译操作
 */
public class Text2 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(), "欢迎删除用户", "删除");
        try (
                Connection connection = DBUtil.getConnection();

        ) {
            String sql = "DELETE FROM userinfo " +
                         "WHERE username=? ";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1, userInfo.getUsername());
            int num =ps.executeUpdate();
            if (num>0){
                System.out.println("删除成功");
            }else{
                System.out.println("删除失败,没有该用户");
            }

        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }
}
